Name: The name of the rule.
Protocol: The protocol used, you can choose TCP, UDP, or both TCP and
UDP.
External Zone: The options for external zone
are WAN, wgclient, wgserver, ovpnclient, ovpnserver.
External Port: The numbers of external ports. You can enter a specific port
number or a range of service ports (E.g 100-300).
Internal Zone: The options for external zone
are WAN, wgclient, wgserver, ovpnclient, ovpnserver.